1.how and why did spokane and seattle change in the late 1800s - early 1900s?
2.how did washington's farming, mining, lumber and other industries benefit one another?
3.how did workers in washington respond to economic and political changes in the state in the late 1800s - early 1900s?

Spokane and Seattle changed when people began settling in the area. These area were filled with natural resources and because of these resources, people began to build their homes and build a community.

The Northern Pacific Railway was built making these places more accessible to the people who have long since been looking for their own place to settle down in. Businesses were started using the natural resources. Mining, logging, agribusiness, and forestry flourished and the once silent place became a bustling city. 

Spokane and Seattle changed in the late 1800s because of  the inflow of people into the area for permanent residence because of the abundance of natural resources in these areasWashington's farming , mining, lumber and other industries benefit one another because the lumbering cleared land for farming activitiesThe workers were very happy to work because the economic changes in the state in the late 1800s were economically favorable

Explanation:

The changes in the Spokane and Seattle in the late 1800s and early 1900s and the Washington's farming, mining and other industries benefit one another was heavily affected by the Northern Pacific Railway which enabled the accessibility of the people. and this influx of people into these areas lead to the building of Agricultural business and other form of business affected the economic situation positively.